Bug 2455

TAO allocates large buffers for applications sending large
amounts of data, which increases the runtime memory of the
application.  It would therefore be beneficial to reduce the
buffer allocations by making use of the GIOP fragments feature.
The goal is to perform CDR stream reads and writes on-demand,
i.e. read/write enough to be able know what to demarshal or
marshal, respectively.  The following link has details on how we
propose to implement that in TAO:

http://deuce.doc.wustl.edu/bugzilla/﷒0﷓
http://deuce.doc.wustl.edu/bugzilla/﷒1﷓

This will involve the following activities:

        . Implement a "backing store" class that hides the source
          buffer, and provides on-demand reads and writes from and to
          that buffer, respectively.

	. Update the ACE CDR stream implementation and the TAO
          messaging code to utilize on-demand reads/writes.